Case-back for nickel alarm-clocks.



F. O. HOFFMAN.

CASE BACK FOR NICKEL ALARM CLOCKS.

APPLICATION FILED MAILZI, 1914.

1,120,651 Patented De0.8,1914.

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HHIWH liHH r ll THE NORRIS PETERS (20.. PHDTO-LITHO, WASHING row, [IV C.

FREDEEIGF HOFFMAN, O13 *EQIJE CLOCK (30., OF T. GIVE;

1,ll2@,651. Specificaiion 0 Application file. were;

A 0 all whom it 12mg; concern Be it known that I, FREDERICK MAN7 a citizen of the U2 ited Sta at Thomaston, in the county 0' and State of Connecticut s new and useful linprovenie for Nickel ii rm-Clocks declare the following nection With the accoiro H J f1 s -fthe characters or reiei lice incised ti icon,

-7 L 1 i and GARCL/ desciiption 1 1.1 W aQEl-Crrb I is. 3 a

section on the line aro ol case prorided with in roved case-hack.

J Iii; invention relates to an improved b; l

of that class of small cylin l clocks in which a relaoeli is located at the back of the cOncentLic therewrh he ch c eing to provide inigle, cheat and substantial case-hack for bell.

Vi -3h these encs in View, my invention consists in a case-back tor sheet-metal clock-cases, the seld case-back has-ring certain details of construction and combine tions of parts as will he hereinafter de scribed and pointed out in th claim.

In carrying ut my invention as 11 shown, 1 employ a struck up sheet-i i caseback 2 formed upon its outer edge with an annular flange 8 adapted in diameter to it snugly in ii the rear edge of a cylindrical sl eet-ineta case-band -1- forming the case proper.

The center of the case-back 2- is formed with concentric resrwardly projecting bell-standerc 5 truncated in shape and having a flat outer hear ng-face 6 for the concentrically arranged boil 7 the ol Ward edge of which extends into deg, wide, annular channel or concentric rece; 8 encircling the standard 5.

far forward into the case-hand 42 by H16 The retaini fiange 3 is stopped from being inserted toof ETH TI-ZDMAS of en overhanging head 9. The bell 7 is secured in place by means of two screws 10 10, passing through holes in the beartandard 5 into a heavy ire reinforce 11 placed i th said bearingbv hating its 'd and folded outrdl r set edge 13 of of the the hearingwill he observed corresponds diameter to the diameter or the extreme d 5 which it reinforce, the

1.1 bill S teched bv means of the .uich threaded into the relal of the groniet-lil'ze rein combined case oad: and hell-support 1 one-piece circular concentric rearar'c aro n rtion the i enter bearopening the edge combination with 1. i e Iorce positioned Within the outer enl or the said standard against l eaLi: C ee and conforming? to the v ard einforce being provided passing through the said lace and throueth the reinforce on opposite sides of the 1 opening In testimony whereofi l: have signed this soeciiication in the presence of two sub cribing Witnesses. A

with crew holes C. HQFFIi hli.

FREDERICK l i itnesses WILLIAM A. nimoini LENA M. Sterilizer.

iflepies of this patent may be obtained for five each, by addressing the Commissioner of Patents, Washington, 

